26662960843 has 4 divisors (see below), whose sum is σ = 26665494640. Its totient is φ = 26660427048.

The previous prime is 26662960829. The next prime is 26662960897. The reversal of 26662960843 is 34806926662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26662960843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26662960543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251048 + ... + 1272181.

It is an arithmetic number, because the mean of its divisors is an integer number (6666373660).

Almost surely, 2^26662960843 is an apocalyptic number.

26662960843 is a deficient number, since it is larger than the sum of its proper divisors (2533797).

26662960843 is a wasteful number, since it uses less digits than its factorization.

26662960843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533796.

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 26662960843 in words is "twenty-six billion, six hundred sixty-two million, nine hundred sixty thousand, eight hundred forty-three".